from tkinter import *
print("Введите начальную координату x:")
x=int(input())
print("Введите начальную координату y:")
y=int(input())
print("Введите коэффицент увиличения N:")
n = int(input())
coords = [0, 0, 10, 0, 10, 10, 20, 10, 20, 40, 10, 40, 10, 30, 0, 30, 0, 0]


if n == 0 and x>=0 and x<=500 and y>=0 and y<=500 :
    pass
else:
    if n> 0 and 0*n+y>=0 and 0*n+y>=0 and 20*n+x<=500 and 40*n+y<=500 :
        pass
    else:
        if n < 0 and 20*n+x>=0 and 40*n+y>=0 and 0*n+y<=500 and 0*n+y<=500 :
            pass
        else:
            print (' Размер фигуры привышает максисальноый размер поля')
            exit()


root = Tk()
root.title("ИТ марафон")
root.geometry("500x500")
canvas = Canvas(bg="white", width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)
canvas.create_polygon(coords [0] *n+x, coords[1] *n+y,
                                        coords [2] *n+x, coords[3] *n+y,
                                        coords [4] *n+x, coords[5] *n+y,
                                        coords [6] *n+x, coords[7] *n+y,
                                        coords [8] *n+x, coords[9] *n+y,
                                        coords [10] *n+x, coords[11] *n+y,
                                        coords [12] *n+x, coords[13] *n+y,
                                        coords [14] *n+x, coords[15] *n+y,
                                        coords [16] *n+x, coords[17] *n+y)

root.mainloop ()